本文整理了Java中org.spongycastle.util.encoders.Base64.decode()方法的一些代码示例，展示了Base64.decode()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Base64.decode()方法的具体详情如下：
包路径：org.spongycastle.util.encoders.Base64
类名称：Base64
方法名：decode

Base64.decode介绍

[英]decode the base 64 encoded String data - whitespace will be ignored.
[中]解码base64编码的字符串数据-空白将被忽略。

代码示例

代码示例来源：origin: ethereum/ethereumj

/**
 * Given a piece of text and a message signature encoded in base64, returns an ECKey
 * containing the public key that was used to sign it. This can then be compared to the expected public key to
 * determine if the signature was correct.
 *
 * @param messageHash a piece of human readable text that was signed
 * @param signatureBase64 The Ethereum-format message signature in base64
 *
 * @return -
 * @throws SignatureException If the public key could not be recovered or if there was a signature format error.
 */
public static byte[] signatureToKeyBytes(byte[] messageHash, String signatureBase64) throws SignatureException {
  byte[] signatureEncoded;
  try {
    signatureEncoded = Base64.decode(signatureBase64);
  } catch (RuntimeException e) {
    // This is what you get back from Bouncy Castle if base64 doesn't decode :(
    throw new SignatureException("Could not decode base64", e);
  }
  // Parse the signature bytes into r/s and the selector value.
  if (signatureEncoded.length < 65)
    throw new SignatureException("Signature truncated, expected 65 bytes and got " + signatureEncoded.length);
  return signatureToKeyBytes(
    messageHash,
    ECDSASignature.fromComponents(
      Arrays.copyOfRange(signatureEncoded, 1, 33),
      Arrays.copyOfRange(signatureEncoded, 33, 65),
      (byte) (signatureEncoded[0] & 0xFF)));
}

代码示例来源：origin: OPCFoundation/UA-Java-Legacy

/**
 * <p>base64Decode.</p>
 *
 * @param string a {@link java.lang.String} object.
 * @return an array of byte.
 */
public static byte[] base64Decode(String string) {
  return Base64.decode(string);
}

代码示例来源：origin: nebulasio/neb.java

public static byte[] Base64ToBytes(String data) {
  return Base64.decode(data);
}

代码示例来源：origin: cternes/openkeepass

@Override
public byte[] read(String value) throws Exception {
  return Base64.decode(value.getBytes());
}

代码示例来源：origin: cternes/openkeepass

@Override
public UUID read(String value) throws Exception {
  if(value == null) {
    return null;
  }
  
  return ByteUtils.bytesToUUID(Base64.decode(value.getBytes()));
}

代码示例来源：origin: blockchain/unused-My-Wallet-V3-jar

private boolean isValidToken(String token) {
  try {
    String tokenParamsJsonB64 = token.split("\\.")[1] + "=";
    String tokenParamsJson = new String(Base64.decode(tokenParamsJsonB64.getBytes("utf-8")));
    JsonFactory factory = new JsonFactory();
    ObjectMapper mapper = new ObjectMapper(factory);
    JsonNode rootNode = mapper.readTree(tokenParamsJson);
    long expDate = rootNode.get("exp").asLong() * 1000;
    long now = System.currentTimeMillis();
    return now < expDate;
  } catch (Exception e) {
    return false;
  }
}

代码示例来源：origin: OPCFoundation/UA-Java-Legacy

/** {@inheritDoc} */
@Override
public byte[] base64Decode(String string) {
  return Base64.decode(StringUtils.removeWhitespace(string));
}

代码示例来源：origin: cternes/openkeepass

@Override
public KeyFileBytes readKeyFile(byte[] keyFile) {
  byte[] protectedBuffer = keyFile;
  int length = keyFile.length;
  if (length == 64) {
    protectedBuffer = Base64.decode(keyFile);
  }
  return new KeyFileBytes(true, protectedBuffer);
}

代码示例来源：origin: OPCFoundation/UA-Java-Legacy

/** {@inheritDoc} */
@Override
public byte[] base64Decode(String string) {
  return Base64.decode(StringUtils.removeWhitespace(string));
}

代码示例来源：origin: CoinbaseWallet/toshi-headless-client

private byte[] readIvFromFileOrGenerateNew() {
  final String encoded = null;// = this.preferences.getString(IV, null);
  if (encoded == null) {
    return generateAndSaveIv();
  }
  return Base64.decode(encoded);
}

代码示例来源：origin: Coinomi/coinomi-android

static String decrypt(long key, String fullMessage) throws DataFormatException {
  byte[] bytes = decryptBytes(key, Base64.decode(fullMessage));
  return new String(bytes);
}

代码示例来源：origin: openwalletGH/openwallet-android

static String decrypt(long key, String fullMessage) throws DataFormatException {
  byte[] bytes = decryptBytes(key, Base64.decode(fullMessage));
  return new String(bytes);
}

代码示例来源：origin: CoinbaseWallet/toshi-headless-client

public String decrypt(final String cryptedText, final String password) {
  if (this.cipher == null) {
    initWithPassword(password);
  }
  try {
    cipher.init(Cipher.DECRYPT_MODE, key, spec);
    final byte[] bytes = Base64.decode(cryptedText);
    final byte[] decrypted = cipher.doFinal(bytes);
    return new String(decrypted, "UTF-8");
  } catch (InvalidKeyException | InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException | UnsupportedEncodingException e) {
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: QuincySx/BlockchainWallet-Crypto

public static String decode(String input) {
  return Strings.fromByteArray(org.spongycastle.util.encoders.Base64.decode(input));
}

代码示例来源：origin: cternes/openkeepass

@Override
public String decrypt(String protectedString) {
  if (protectedString == null) {
    throw new IllegalArgumentException("ProtectedString must not be null");
  }
  byte[] protectedBuffer = Base64.decode(protectedString.getBytes());
  byte[] plainText = new byte[protectedBuffer.length];
  try {
    salsa20Engine.processBytes(protectedBuffer, 0, protectedBuffer.length, plainText, 0);
    return new String(plainText, ENCODING);
  } catch (UnsupportedEncodingException e) {
    throw new UnsupportedOperationException(MSG_UNKNOWN_UTF8_ENCODING, e);
  }
}

代码示例来源：origin: cternes/openkeepass

private byte[] getBytesFromKeyFile(KeyFile keyFile) {
    try {
      return Base64.decode(keyFile.getKey().getData().getBytes(UTF_8));
    } catch (UnsupportedEncodingException e) {
      throw new UnsupportedOperationException(MSG_UTF8_NOT_SUPPORTED, e);
    }
  }
}

代码示例来源：origin: tronprotocol/wallet-cli

public static byte[] signatureToKeyBytes(byte[] messageHash, String
  signatureBase64) throws SignatureException {
 byte[] signatureEncoded;
 try {
  signatureEncoded = Base64.decode(signatureBase64);
 } catch (RuntimeException e) {
  // This is what you getData back from Bouncy Castle if base64 doesn't
  // decode :(
  throw new SignatureException("Could not decode base64", e);
 }
 // Parse the signature bytes into r/s and the selector value.
 if (signatureEncoded.length < 65) {
  throw new SignatureException("Signature truncated, expected 65 " +
    "bytes and got " + signatureEncoded.length);
 }
 return signatureToKeyBytes(
   messageHash,
   ECDSASignature.fromComponents(
     Arrays.copyOfRange(signatureEncoded, 1, 33),
     Arrays.copyOfRange(signatureEncoded, 33, 65),
     (byte) (signatureEncoded[0] & 0xFF)));
}

代码示例来源：origin: UniversaBlockchain/universa

public Binder extractParams(BasicHTTPService.Request request) {
  Binder rp = request.getParams();
  String sparams = rp.getString("requestData64", null);
  if (sparams != null) {
    byte [] x = Base64.decode(sparams);
    return Boss.unpack(x);
  } else {
    BasicHTTPService.FileUpload rd = (BasicHTTPService.FileUpload) rp.get("requestData");
    if (rd != null) {
      byte[] data = rd.getBytes();
      return Boss.unpack(data);
    }
  }
  return Binder.EMPTY;
}

代码示例来源：origin: blockchain/unused-My-Wallet-V3-jar

/**
 * Get metadata entry
 */
private String getMetadataEntry(String address, boolean isEncrypted) throws MetadataException,
    IOException,
    InvalidCipherTextException {
  Call<MetadataResponse> response = getApiInstance().getMetadata(address);
  Response<MetadataResponse> exe = response.execute();
  if (exe.isSuccessful()) {
    if (isEncrypted) {
      return AESUtil.decryptWithKey(encryptionKey, exe.body().getPayload());
    } else {
      return new String(Base64.decode(exe.body().getPayload()));
    }
  } else {
    if (exe.code() == 404) {
      return null;
    } else {
      throw new MetadataException(exe.code() + " " + exe.message());
    }
  }
}

代码示例来源：origin: blockchain/unused-My-Wallet-V3-jar

public void fetchMagic() throws IOException, MetadataException {
  Call<MetadataResponse> response = getApiInstance().getMetadata(address);
  Response<MetadataResponse> exe = response.execute();
  if (exe.isSuccessful()) {
    MetadataResponse body = exe.body();
    byte[] encryptedPayloadBytes = Base64.decode(exe.body().getPayload().getBytes("utf-8"));
    if (body.getPrevMagicHash() != null) {
      byte[] prevMagicBytes = Hex.decode(body.getPrevMagicHash());
      magicHash = MetadataUtil.magic(encryptedPayloadBytes, prevMagicBytes);
    } else {
      magicHash = MetadataUtil.magic(encryptedPayloadBytes, null);
    }
  } else {
    if (exe.code() == 404) {
      magicHash = null;
    } else {
      throw new MetadataException(exe.code() + " " + exe.message());
    }
  }
}